Constellium Ownership | Who Owns Constellium?

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Constellium Ownership Summary

Constellium is owned by 90.31% institutional investors, 1.90% insiders, and 7.79% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 9.96% of CSTM shares. Fidelity Value is the top mutual fund, with 3.28% of its assets in Constellium shares.

CSTM Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Constellium	90.31%	1.90%	7.79%
Sector	Basic Materials Stocks	36.61%	12.69%	50.70%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	14.02M	9.96%	$208.61M
Fmr	13.52M	9.60%	$201.15M
Bpifrance sa	12.59M	8.94%	$187.40M
Blackrock	11.43M	7.79%	$215.44M
Janus henderson group	6.45M	4.43%	$66.19M
Nut tree capital management, lp	5.21M	3.70%	$77.58M
T. rowe price investment management	5.12M	3.63%	$76.14M
Encompass capital advisors	4.26M	3.03%	$63.45M
Vanguard group	3.30M	2.34%	$49.09M
Nuveen	2.85M	2.02%	$42.41M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Kailix advisors	1.10M	22.34%	$16.42M
Nut tree capital management, lp	5.21M	17.90%	$77.58M
Soapstone management	1.67M	16.86%	$24.84M
Brightline capital management	1.63M	9.91%	$24.18M
Bpifrance sa	12.59M	9.52%	$187.40M
Beaconlight capital	1.27M	9.35%	$18.95M
Mountaineer partners management	833.78K	7.22%	$12.41M
Encompass capital advisors	4.26M	2.23%	$63.45M
Beacon investment advisors	340.62K	2.07%	$5.07M
New century financial group	68.44K	1.81%	$1.02M

Top Buyers

Holder	Shares	% Assets	Change
Blackrock	11.43M	0.00%	1.66M
D. e. shaw	2.43M	0.02%	1.28M
Vanguard group	3.30M	0.00%	938.15K
Morgan stanley	2.51M	0.00%	910.38K
Nuveen	2.85M	0.01%	709.29K

Top Sellers

Holder	Shares	% Assets	Change
T. rowe price investment management	5.12M	0.05%	-9.19M
Westwood group	-	-	-6.52M
Oberweis asset management inc/	-	-	-1.84M
Samlyn capital	-	-	-1.73M
Rubric capital management lp	-	-	-1.52M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	424.04K	0.00%	424.04K	$4.35M
Sequoia financial advisors	193.28K	0.02%	193.28K	$2.88M
Gw&k investment management	160.03K	0.02%	160.03K	$2.38M
Knights of columbus asset advisors	132.30K	0.11%	132.30K	$1.97M
Nomura	131.01K	0.00%	131.01K	$2.47M

Sold Out

Holder	Change
Capital performance advisors llp	-7.00
First horizon advisors	-20.00
Southstate	-20.00
Svb wealth	-26.00
Corecap advisors	-28.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	238	6.25%	127,175,966	1.31%	90	1.14%	135	0.75%	69	9.52%
Jun 30, 2025	229	-2.14%	130,590,895	0.80%	92	1.17%	136	6.25%	66	-1.49%
Mar 31, 2025	234	1.30%	130,456,040	-3.44%	89	1.04%	128	2.40%	67	-9.46%
Dec 31, 2024	228	-1.30%	134,826,739	0.18%	92	1.08%	122	-4.69%	74	2.78%
Sep 30, 2024	230	-3.36%	134,590,524	-0.48%	92	1.08%	126	-11.27%	73	10.61%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Fidelity Value	4.58M	3.28%	-183.00K
Janus Henderson Contrarian D	4.18M	2.91%	-
Janus Henderson US Opportunistic Alpha	4.18M	2.86%	321.95K
T. Rowe Price Small-Cap Value	3.83M	2.74%	-1.55M
Janus Henderson Opportunistic Alpha MA	3.86M	2.64%	3.86M
iShares Russell 2000 ETF	3.44M	2.46%	-
T. Rowe Price U.S. SC Value Eq Tr-Z	3.42M	2.40%	187.37K
T. Rowe Price U.S. SC Value Eq Tr-D	3.36M	2.35%	-67.88K
Jennison SMid Cap Core Equity	2.31M	1.58%	-41.76K
PGIM Jennison Small Company A	2.31M	1.58%	-

CSTM Ownership FAQ

Who owns the most shares of Constellium?

Constellium’s largest shareholders are Blackrock funding, inc. /de (14.02M shares, 9.96%), Fmr (13.52M shares, 9.60%), and Bpifrance sa (12.59M shares, 8.94%). Together, they hold 28.50% of Constellium’s total shares outstanding.

Does Blackrock own Constellium?

Yes, BlackRock owns 7.79% of Constellium, totaling 11.43M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 215.44M$. In the last quarter, BlackRock increased its holdings by 1.66M shares, a 17.00% change.

Who is Constellium’s biggest shareholder by percentage of total assets invested?

Kailix advisors is Constellium’s biggest shareholder by percentage of total assets invested, with 22.34% of its assets in 1.1M Constellium shares, valued at 16.42M$.

Who is the top mutual fund holder of Constellium shares?

Fidelity Value is the top mutual fund holder of Constellium shares, with 3.28% of its total shares outstanding invested in 4.58M Constellium shares.

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